(Phys.org)—Global demand for data storage is constantly increasing, driven by new technologies such as Big Data and the Internet of Things, as well as personal and enterprise storage. The hard disk drives that currently ...

(Phys.org)—Information can never be stored perfectly. Whether on a CD, a hard disk drive, or a piece of papyrus, technological imperfections create noise that limits the preservation of information over time. But even if ...

(PhysOrg.com) -- In an effort to increase the recording densities of hard disk drives, patterned media has become one of the most promising strategies for achieving recording densities beyond 1 Tbit/in2. In patterned media, ...

(PhysOrg.com) -- The ability to store and retrieve data is an important component of today's computers, as well as other modern electronic devices such as cell phones, video game consoles, and camcorders. Since their invention ...

(Phys.org)—TDK has realized increased areal density of its hard disk drives. TDK has set a new record, compared to previous areal density at 1Tbit/inch2, with the new stat of increased density to 1.5Tbits/inch2. The point ...

(Phys.org) -- A sapphire hard disk can last one million years and resolve a problem worrying archaeologists. Thursday, Patrick Charton of the French nuclear waste management agency ANDRA, presented a way out of data storage ...

Scientists have taken an important step forward in developing a new material using nano-sized magnets that could ultimately lead to new types of electronic devices, with greater capacity than is currently feasible, in a study ...

(PhysOrg.com) -- A joint U.S./UK research team has found that common encryption techniques are so good that law enforcement, from local to highly resourceful federal agencies, are unable to get at data on a computer hard ...

That sinking feeling when your hard disk starts screeching and you haven't backed up your holiday photos is a step closer to becoming a thing of the past thanks to research into a new kind of computer memory.

Our need to store data is growing at an astonishing rate. An estimated 2.7 zettabytes (2.721) of data are currently held worldwide, equivalent to several trillion bytes for every one of the 7 billion people on Earth. Accessing ...

Hard disk drive

A hard disk drive (often shortened as "hard disk", "hard drive", or "HDD"), is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, "drive" refers to a device distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.